Numbers whose base-3 representation contains exactly two 0's and no 1's.

Terms

a(0) =18a(1) =56a(2) =60a(3) =72a(4) =170a(5) =182a(6) =186a(7) =218a(8) =222a(9) =234a(10) =512a(11) =548a(12) =560a(13) =564a(14) =656a(15) =668a(16) =672a(17) =704a(18) =708a(19) =720a(20) =1538a(21) =1646a(22) =1682a(23) =1694a(24) =1698a(25) =1970a(26) =2006a(27) =2018a(28) =2022a(29) =2114